X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-parisc%2Funistd.h;h=4ac6d178e2e355ce54c08fb6710af2fa0328b1b0;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=c4a36aab6debfcb62e02f12369b07bc4e166a796;hpb=a8e794ca871505c8ea96cc102f4ad555c5231d7f;p=linux-2.6.git diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h index c4a36aab6..4ac6d178e 100644 --- a/include/asm-parisc/unistd.h +++ b/include/asm-parisc/unistd.h @@ -700,125 +700,202 @@ #define __NR_acl_set (__NR_Linux + 205) #define __NR_gettid (__NR_Linux + 206) #define __NR_readahead (__NR_Linux + 207) -#define __NR_tkill (__NR_Linux + 208) -#define __NR_sendfile64 (__NR_Linux + 209) -#define __NR_futex (__NR_Linux + 210) -#define __NR_sched_setaffinity (__NR_Linux + 211) -#define __NR_sched_getaffinity (__NR_Linux + 212) -#define __NR_set_thread_area (__NR_Linux + 213) -#define __NR_get_thread_area (__NR_Linux + 214) -#define __NR_io_setup (__NR_Linux + 215) -#define __NR_io_destroy (__NR_Linux + 216) -#define __NR_io_getevents (__NR_Linux + 217) -#define __NR_io_submit (__NR_Linux + 218) -#define __NR_io_cancel (__NR_Linux + 219) -#define __NR_alloc_hugepages (__NR_Linux + 220) -#define __NR_free_hugepages (__NR_Linux + 221) -#define __NR_exit_group (__NR_Linux + 222) -#define __NR_lookup_dcookie (__NR_Linux + 223) -#define __NR_epoll_create (__NR_Linux + 224) -#define __NR_epoll_ctl (__NR_Linux + 225) -#define __NR_epoll_wait (__NR_Linux + 226) -#define __NR_remap_file_pages (__NR_Linux + 227) -#define __NR_semtimedop (__NR_Linux + 228) +#define __NR_tkill (__NR_Linux + 208) +#define __NR_sendfile64 (__NR_Linux + 209) +#define __NR_futex (__NR_Linux + 210) +#define __NR_sched_setaffinity (__NR_Linux + 211) +#define __NR_sched_getaffinity (__NR_Linux + 212) +#define __NR_set_thread_area (__NR_Linux + 213) +#define __NR_get_thread_area (__NR_Linux + 214) +#define __NR_io_setup (__NR_Linux + 215) +#define __NR_io_destroy (__NR_Linux + 216) +#define __NR_io_getevents (__NR_Linux + 217) +#define __NR_io_submit (__NR_Linux + 218) +#define __NR_io_cancel (__NR_Linux + 219) +#define __NR_alloc_hugepages (__NR_Linux + 220) +#define __NR_free_hugepages (__NR_Linux + 221) +#define __NR_exit_group (__NR_Linux + 222) +#define __NR_lookup_dcookie (__NR_Linux + 223) +#define __NR_epoll_create (__NR_Linux + 224) +#define __NR_epoll_ctl (__NR_Linux + 225) +#define __NR_epoll_wait (__NR_Linux + 226) +#define __NR_remap_file_pages (__NR_Linux + 227) +#define __NR_semtimedop (__NR_Linux + 228) +#define __NR_mq_open (__NR_Linux + 229) +#define __NR_mq_unlink (__NR_Linux + 230) +#define __NR_mq_timedsend (__NR_Linux + 231) +#define __NR_mq_timedreceive (__NR_Linux + 232) +#define __NR_mq_notify (__NR_Linux + 233) +#define __NR_mq_getsetattr (__NR_Linux + 234) +#define __NR_waitid (__NR_Linux + 235) +#define __NR_fadvise64_64 (__NR_Linux + 236) +#define __NR_set_tid_address (__NR_Linux + 237) +#define __NR_setxattr (__NR_Linux + 238) +#define __NR_lsetxattr (__NR_Linux + 239) +#define __NR_fsetxattr (__NR_Linux + 240) +#define __NR_getxattr (__NR_Linux + 241) +#define __NR_lgetxattr (__NR_Linux + 242) +#define __NR_fgetxattr (__NR_Linux + 243) +#define __NR_listxattr (__NR_Linux + 244) +#define __NR_llistxattr (__NR_Linux + 245) +#define __NR_flistxattr (__NR_Linux + 246) +#define __NR_removexattr (__NR_Linux + 247) +#define __NR_lremovexattr (__NR_Linux + 248) +#define __NR_fremovexattr (__NR_Linux + 249) +#define __NR_timer_create (__NR_Linux + 250) +#define __NR_timer_settime (__NR_Linux + 251) +#define __NR_timer_gettime (__NR_Linux + 252) +#define __NR_timer_getoverrun (__NR_Linux + 253) +#define __NR_timer_delete (__NR_Linux + 254) +#define __NR_clock_settime (__NR_Linux + 255) +#define __NR_clock_gettime (__NR_Linux + 256) +#define __NR_clock_getres (__NR_Linux + 257) +#define __NR_clock_nanosleep (__NR_Linux + 258) +#define __NR_tgkill (__NR_Linux + 259) +#define __NR_mbind (__NR_Linux + 260) +#define __NR_get_mempolicy (__NR_Linux + 261) +#define __NR_set_mempolicy (__NR_Linux + 262) #define __NR_vserver (__NR_Linux + 273) -#define __NR_Linux_syscalls 273 +#define __NR_Linux_syscalls 273 #define HPUX_GATEWAY_ADDR 0xC0000004 #define LINUX_GATEWAY_ADDR 0x100 #ifndef __ASSEMBLY__ -/* The old syscall code here didn't work, and it looks like it's only used - * by applications such as fdisk which for some reason need to produce - * their own syscall instead of using same from libc. The code below - * is leveraged from glibc/sysdeps/unix/sysv/linux/hppa/sysdep.h where - * it is essentially duplicated -- which sucks. -PB +#define SYS_ify(syscall_name) __NR_##syscall_name + +/* Assume all syscalls are done from PIC code just to be + * safe. The worst case scenario is that you lose a register + * and save/restore r19 across the syscall. */ +#define PIC + +#ifndef ASM_LINE_SEP +# define ASM_LINE_SEP ; +#endif + +/* Definition taken from glibc 2.3.3 + * sysdeps/unix/sysv/linux/hppa/sysdep.h */ -#define SYS_ify(syscall_name) __NR_##syscall_name +#ifdef PIC +/* WARNING: CANNOT BE USED IN A NOP! */ +# define K_STW_ASM_PIC " copy %%r19, %%r4\n" +# define K_LDW_ASM_PIC " copy %%r4, %%r19\n" +# define K_USING_GR4 "%r4", +#else +# define K_STW_ASM_PIC " \n" +# define K_LDW_ASM_PIC " \n" +# define K_USING_GR4 +#endif -/* The system call number MUST ALWAYS be loaded in the delay slot of - the ble instruction, or restarting system calls WILL NOT WORK. See - arch/parisc/kernel/signal.c - dhd, 2000-07-26 */ -#define K_INLINE_SYSCALL(name, nr, args...) ({ \ - unsigned long __sys_res; \ - { \ - register unsigned long __res asm("r28"); \ - K_LOAD_ARGS_##nr(args) \ - asm volatile( \ - "ble 0x100(%%sr2, %%r0)\n\t" \ - " ldi %1, %%r20" \ - : "=r" (__res) \ - : "i" (SYS_ify(name)) K_ASM_ARGS_##nr \ - ); \ - __sys_res = __res; \ - } \ - if (__sys_res >= (unsigned long)-4095) { \ - errno = -__sys_res; \ - __sys_res = (unsigned long)-1; \ - } \ - __sys_res; \ +/* GCC has to be warned that a syscall may clobber all the ABI + registers listed as "caller-saves", see page 8, Table 2 + in section 2.2.6 of the PA-RISC RUN-TIME architecture + document. However! r28 is the result and will conflict with + the clobber list so it is left out. Also the input arguments + registers r20 -> r26 will conflict with the list so they + are treated specially. Although r19 is clobbered by the syscall + we cannot say this because it would violate ABI, thus we say + r4 is clobbered and use that register to save/restore r19 + across the syscall. */ + +#define K_CALL_CLOB_REGS "%r1", "%r2", K_USING_GR4 \ + "%r20", "%r29", "%r31" + +#undef K_INLINE_SYSCALL +#define K_INLINE_SYSCALL(name, nr, args...) ({ \ + long __sys_res; \ + { \ + register unsigned long __res asm("r28"); \ + K_LOAD_ARGS_##nr(args) \ + /* FIXME: HACK stw/ldw r19 around syscall */ \ + asm volatile( \ + K_STW_ASM_PIC \ + " ble 0x100(%%sr2, %%r0)\n" \ + " ldi %1, %%r20\n" \ + K_LDW_ASM_PIC \ + : "=r" (__res) \ + : "i" (SYS_ify(name)) K_ASM_ARGS_##nr \ + : "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_##nr \ + ); \ + __sys_res = (long)__res; \ + } \ + if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){ \ + errno = -__sys_res; \ + __sys_res = -1; \ + } \ + __sys_res; \ }) #define K_LOAD_ARGS_0() -#define K_LOAD_ARGS_1(r26) \ - register unsigned long __r26 __asm__("r26") = (unsigned long)r26; \ - K_LOAD_ARGS_0() -#define K_LOAD_ARGS_2(r26,r25) \ - register unsigned long __r25 __asm__("r25") = (unsigned long)r25; \ - K_LOAD_ARGS_1(r26) -#define K_LOAD_ARGS_3(r26,r25,r24) \ - register unsigned long __r24 __asm__("r24") = (unsigned long)r24; \ - K_LOAD_ARGS_2(r26,r25) -#define K_LOAD_ARGS_4(r26,r25,r24,r23) \ - register unsigned long __r23 __asm__("r23") = (unsigned long)r23; \ - K_LOAD_ARGS_3(r26,r25,r24) -#define K_LOAD_ARGS_5(r26,r25,r24,r23,r22) \ - register unsigned long __r22 __asm__("r22") = (unsigned long)r22; \ - K_LOAD_ARGS_4(r26,r25,r24,r23) -#define K_LOAD_ARGS_6(r26,r25,r24,r23,r22,r21) \ - register unsigned long __r21 __asm__("r21") = (unsigned long)r21; \ - K_LOAD_ARGS_5(r26,r25,r24,r23,r22) +#define K_LOAD_ARGS_1(r26) \ + register unsigned long __r26 __asm__("r26") = (unsigned long)(r26); \ + K_LOAD_ARGS_0() +#define K_LOAD_ARGS_2(r26,r25) \ + register unsigned long __r25 __asm__("r25") = (unsigned long)(r25); \ + K_LOAD_ARGS_1(r26) +#define K_LOAD_ARGS_3(r26,r25,r24) \ + register unsigned long __r24 __asm__("r24") = (unsigned long)(r24); \ + K_LOAD_ARGS_2(r26,r25) +#define K_LOAD_ARGS_4(r26,r25,r24,r23) \ + register unsigned long __r23 __asm__("r23") = (unsigned long)(r23); \ + K_LOAD_ARGS_3(r26,r25,r24) +#define K_LOAD_ARGS_5(r26,r25,r24,r23,r22) \ + register unsigned long __r22 __asm__("r22") = (unsigned long)(r22); \ + K_LOAD_ARGS_4(r26,r25,r24,r23) +#define K_LOAD_ARGS_6(r26,r25,r24,r23,r22,r21) \ + register unsigned long __r21 __asm__("r21") = (unsigned long)(r21); \ + K_LOAD_ARGS_5(r26,r25,r24,r23,r22) +/* Even with zero args we use r20 for the syscall number */ #define K_ASM_ARGS_0 -#define K_ASM_ARGS_1 , "r" (__r26) -#define K_ASM_ARGS_2 , "r" (__r26), "r" (__r25) -#define K_ASM_ARGS_3 , "r" (__r26), "r" (__r25), "r" (__r24) -#define K_ASM_ARGS_4 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23) -#define K_ASM_ARGS_5 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22) -#define K_ASM_ARGS_6 , "r" (__r26), "r" (__r25), "r" (__r24), "r" (__r23), "r" (__r22), "r" (__r21) - -#define _syscall0(type,name) \ -type name(void) \ -{ \ - return K_INLINE_SYSCALL(name, 0); \ +#define K_ASM_ARGS_1 K_ASM_ARGS_0, "r" (__r26) +#define K_ASM_ARGS_2 K_ASM_ARGS_1, "r" (__r25) +#define K_ASM_ARGS_3 K_ASM_ARGS_2, "r" (__r24) +#define K_ASM_ARGS_4 K_ASM_ARGS_3, "r" (__r23) +#define K_ASM_ARGS_5 K_ASM_ARGS_4, "r" (__r22) +#define K_ASM_ARGS_6 K_ASM_ARGS_5, "r" (__r21) + +/* The registers not listed as inputs but clobbered */ +#define K_CLOB_ARGS_6 +#define K_CLOB_ARGS_5 K_CLOB_ARGS_6, "%r21" +#define K_CLOB_ARGS_4 K_CLOB_ARGS_5, "%r22" +#define K_CLOB_ARGS_3 K_CLOB_ARGS_4, "%r23" +#define K_CLOB_ARGS_2 K_CLOB_ARGS_3, "%r24" +#define K_CLOB_ARGS_1 K_CLOB_ARGS_2, "%r25" +#define K_CLOB_ARGS_0 K_CLOB_ARGS_1, "%r26" + +#define _syscall0(type,name) \ +type name(void) \ +{ \ + return K_INLINE_SYSCALL(name, 0); \ } -#define _syscall1(type,name,type1,arg1) \ -type name(type1 arg1) \ -{ \ - return K_INLINE_SYSCALL(name, 1, arg1); \ +#define _syscall1(type,name,type1,arg1) \ +type name(type1 arg1) \ +{ \ + return K_INLINE_SYSCALL(name, 1, arg1); \ } -#define _syscall2(type,name,type1,arg1,type2,arg2) \ -type name(type1 arg1, type2 arg2) \ -{ \ - return K_INLINE_SYSCALL(name, 2, arg1, arg2); \ +#define _syscall2(type,name,type1,arg1,type2,arg2) \ +type name(type1 arg1, type2 arg2) \ +{ \ + return K_INLINE_SYSCALL(name, 2, arg1, arg2); \ } -#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ -type name(type1 arg1, type2 arg2, type3 arg3) \ -{ \ - return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3); \ +#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ +type name(type1 arg1, type2 arg2, type3 arg3) \ +{ \ + return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3); \ } -#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ -type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ -{ \ - return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4); \ +#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ +type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ +{ \ + return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4); \ } /* select takes 5 arguments */ @@ -828,16 +905,37 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ return K_INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5); \ } +#ifdef __KERNEL__ +#define __ARCH_WANT_OLD_READDIR +#define __ARCH_WANT_STAT64 +#define __ARCH_WANT_SYS_ALARM +#define __ARCH_WANT_SYS_GETHOSTNAME +#define __ARCH_WANT_SYS_PAUSE +#define __ARCH_WANT_SYS_SGETMASK +#define __ARCH_WANT_SYS_SIGNAL +#define __ARCH_WANT_SYS_TIME +#define __ARCH_WANT_COMPAT_SYS_TIME +#define __ARCH_WANT_SYS_UTIME +#define __ARCH_WANT_SYS_WAITPID +#define __ARCH_WANT_SYS_SOCKETCALL +#define __ARCH_WANT_SYS_FADVISE64 +#define __ARCH_WANT_SYS_GETPGRP +#define __ARCH_WANT_SYS_LLSEEK +#define __ARCH_WANT_SYS_NICE +#define __ARCH_WANT_SYS_OLD_GETRLIMIT +#define __ARCH_WANT_SYS_OLDUMOUNT +#define __ARCH_WANT_SYS_SIGPENDING +#define __ARCH_WANT_SYS_SIGPROCMASK +#define __ARCH_WANT_SYS_RT_SIGACTION +#endif /* mmap & mmap2 take 6 arguments */ - #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \ -{ \ +{ \ return K_INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6); \ } - #ifdef __KERNEL_SYSCALLS__ #include @@ -887,9 +985,9 @@ static inline int close(int fd) return sys_close(fd); } -static inline int _exit(int exitcode) +static inline void _exit(int exitcode) { - return sys_exit(exitcode); + sys_exit(exitcode); } static inline pid_t waitpid(pid_t pid, int *wait_stat, int options)